What if Batman's underwear is inside, not outside?

DC - BATMAN Boxer Briefs - PSD Underwear

Ever wondered why superheroes wear underwear on the outside? - India Today

Batman with or without the trousers? : r/batman

Off My Mind: Why Do Heroes Wear Their Underwear On The Outside? - Superman - Comic Vine

Batman with or without the trousers? : r/batman

Pierce Brosnan Failed Batman Audition with 'Stupid' Note to Tim Burton

Why does Batman wear his underwear on the outside? - Quora

Return of Underwear-Outside-Trousers Explained in Batman #53 [SPOILERS]

Ever wondered why superheroes wear underwear on the outside? - India Today

Return of Underwear-Outside-Trousers Explained in Batman #53 [SPOILERS]

Why does Superman wear the underpants on the outside? - Quora

Is there a lore reason for Batman wearing his underwear on the outside? Is he a stupid baby? : r/BatmanArkham